A green preparation of fine active alumina from saturated sodium aluminate solution by phase evolution is presented. High capillary pressure, numerous mesopores, and the inhibition of aggregation produced FAA with an extremely high specific surface area.
A fine activated alumina with high specific surface area was prepared by phase evolution from sodium aluminate solution, Al(OH)3 and NH4Al(OH)2CO3. The maximum adsorption capacity was 261.66 mg g−1 and the regenerated material exhibited high performance phosphate removal.
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